/*
 * Copyright 2012-2025 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.assertj.core.util;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;

import org.junit.jupiter.api.Test;

/**
 * Tests for <code>{@link Preconditions#checkNotNullOrEmpty(String)}</code>.
 * 
 * @author Christian Rösch
 */
class Preconditions_checkNotNullOrEmpty_String_Test {

  @Test
  void should_throw_IllegalArgumentException_if_string_is_empty() {
    assertThatIllegalArgumentException().isThrownBy(() -> {
      String string = "";
      Preconditions.checkNotNullOrEmpty(string);
    }).withMessage(Preconditions.ARGUMENT_EMPTY);
  }

  @Test
  void should_throw_NullPointerException_if_string_is_null() {
    assertThatNullPointerException().isThrownBy(() -> {
      String string = null;
      Preconditions.checkNotNullOrEmpty(string);
    });
  }

  @Test
  void should_return_string_if_it_is_not_null_nor_empty() {
    String string = "a";
    CharSequence result = Preconditions.checkNotNullOrEmpty(string);

    assertThat(result).isEqualTo(string);
  }
}
